An undocumented hack is going to shoot the G1 in the head and make it DOA? I wasn't saying that this couldn't be done. I was saying that Apple would never do it, because it's an aesthetic disaster.
I won't comment on whether or not it's a disaster (MobileMe, anyone), but it's really just not that useful. There is not that much to do on your phone that would require a real keyboard. If you want a real keyboard, get an Eeepc instead of an iPhone.